On 21 Aug 2008, at 21:59, Adrian Robert wrote:

>
>> ... Emacs expects to find the DOC
> ...
>
> "make install"

"make" seems to update the binary within nextstep/Emacs.app, but also  
increases the version number, which is why the new DOC is expected.
It would be sensible to leave Emacs.app in a consistent state, either  
way, i.e. produce the new DOC and (!!) delete the previous DOC.